package test;

public class ArrayUtil {
	
	private ArrayUtil() {}

	public static String printArr(int[] arr) {
		StringBuilder sb = new StringBuilder();
		sb.append("[");
		for(int i = 0; i < arr.length; i++) {
			if(i == arr.length - 1) {
				sb.append(arr[i]);
			}else {
				sb.append(arr[i] + ",");
			}
		}
		sb.append("]");
		return sb.toString();
	}
	
	
	public static double getArray(double[] arr) {
		double sum = 0;
		for(int i = 0; i < arr.length; i++) {
			sum = sum + arr[i];
		}
		return sum / arr.length;
	}
}
